The explosion-proof membrane is a metal film that is placed on the upper part of the pressure vessel to prevent the explosion of the vessel and is a safety device. Also known as rupture disk or rupture disc. When the pressure inside the container exceeds a certain limit, the film is first broken, thereby reducing the pressure inside the container and avoiding an explosion. It is widely used in pressure vessels. The term explosion-proof window film is sometimes referred to as the front windshield.
The structure of the Explosion-proof car film has the following:
1. Anti-wear layer: composed of wear-resistant polyurethane, hardness up to 4H;
2, colored PET safety base layer: by high-strength, high-transparency PET polyester and pigment melt extrusion two-way stretching, because the pigment is sandwiched inside the PET film, can prevent oxidative discoloration, life expectancy of up to 8 years;
3, metal insulation layer: on the PET film by vacuum evaporation or vacuum magnetron sputtering metal aluminum, silver, nickel and other nano-level metal layer with higher reflectivity of infrared;
4. Composite adhesive: composed of polyurethane adhesive with good weather resistance and high transparency;
5, UV absorption layer: composed of special UV absorber, can block 99% of ultraviolet light;
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